The survey counts county-to-county moves over the course of one year (individuals were asked where they lived one year prior to being surveyed).

Los Angeles also led the numbers with the most people arriving from another specific county, and the most people leaving for another specific county (with a net loss of about 160,000 people in the shuffle), the data shows.

The U.S. winner for most "inflows" went to Maricopa, AZ, with people arriving there from 993 different counties. They also led the country with the most "outflows," sending away one-time residents to 1,156 different counties.

Previously available migration tables only showed state-to-state patterns. Data from the 2006-2010 survey is expected later this year. Those estimates will include demographic characteristics, "such as age, sex, and race and Hispanic origin," notes the U.S. Census website.